java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 13:07:07,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 13:07:07,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 13:07:07,067 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 13:07:07,067 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 13:07:07,068 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 13:07:07,070 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 13:07:07,071 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 13:07:07,073 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 13:07:07,074 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 13:07:07,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 13:07:07,075 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 13:07:07,076 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 13:07:07,077 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 13:07:07,078 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 13:07:07,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 13:07:07,082 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 13:07:07,084 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 13:07:07,086 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 13:07:07,087 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 13:07:07,090 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-28 13:07:07,090 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-28 13:07:07,090 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-28 13:07:07,091 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-28 13:07:07,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-28 13:07:07,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-28 13:07:07,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-28 13:07:07,095 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-28 13:07:07,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-28 13:07:07,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 13:07:07,096 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 13:07:07,096 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 13:07:07,122 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 13:07:07,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 13:07:07,122 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 13:07:07,123 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 13:07:07,123 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 13:07:07,123 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 13:07:07,124 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 13:07:07,124 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 13:07:07,124 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 13:07:07,124 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 13:07:07,125 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 13:07:07,125 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 13:07:07,125 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 13:07:07,125 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 13:07:07,125 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 13:07:07,126 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 13:07:07,126 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 13:07:07,126 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 13:07:07,126 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 13:07:07,126 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 13:07:07,127 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 13:07:07,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 13:07:07,127 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 13:07:07,127 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 13:07:07,128 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 13:07:07,128 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:07:07,128 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 13:07:07,128 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 13:07:07,129 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 13:07:07,129 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 13:07:07,129 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 13:07:07,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:07:07,129 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 13:07:07,130 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 13:07:07,131 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 13:07:07,131 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 13:07:07,131 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 13:07:07,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 13:07:07,177 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 13:07:07,181 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 13:07:07,183 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 13:07:07,183 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 13:07:07,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-28 13:07:07,508 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGe44bedd8c [2018-03-28 13:07:07,627 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 13:07:07,627 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 13:07:07,627 INFO L171 CDTParser]: Scanning ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-28 13:07:07,628 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 13:07:07,628 INFO L215 ultiparseSymbolTable]: [2018-03-28 13:07:07,628 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 13:07:07,628 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar ('bar') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-28 13:07:07,628 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-28 13:07:07,629 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-28 13:07:07,629 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 13:07:07,629 INFO L233 ultiparseSymbolTable]: [2018-03-28 13:07:07,649 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGe44bedd8c [2018-03-28 13:07:07,654 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 13:07:07,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 13:07:07,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 13:07:07,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 13:07:07,665 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 13:07:07,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409026ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07, skipping insertion in model container [2018-03-28 13:07:07,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,682 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:07:07,692 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:07:07,820 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:07:07,851 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:07:07,857 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-03-28 13:07:07,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07 WrapperNode [2018-03-28 13:07:07,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 13:07:07,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 13:07:07,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 13:07:07,871 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 13:07:07,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... [2018-03-28 13:07:07,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 13:07:07,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 13:07:07,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 13:07:07,907 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 13:07:07,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:07:07,964 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 13:07:07,964 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 13:07:07,964 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-03-28 13:07:07,964 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-03-28 13:07:07,964 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 13:07:07,964 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-03-28 13:07:07,964 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 13:07:07,965 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-03-28 13:07:07,965 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 13:07:07,965 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 13:07:07,965 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 13:07:07,965 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 13:07:07,965 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 13:07:07,966 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 13:07:07,966 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 13:07:08,329 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 13:07:08,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:07:08 BoogieIcfgContainer [2018-03-28 13:07:08,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 13:07:08,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 13:07:08,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 13:07:08,335 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 13:07:08,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 01:07:07" (1/3) ... [2018-03-28 13:07:08,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f84d3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:07:08, skipping insertion in model container [2018-03-28 13:07:08,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:07:07" (2/3) ... [2018-03-28 13:07:08,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f84d3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:07:08, skipping insertion in model container [2018-03-28 13:07:08,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:07:08" (3/3) ... [2018-03-28 13:07:08,338 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-28 13:07:08,344 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 13:07:08,351 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-03-28 13:07:08,388 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 13:07:08,388 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 13:07:08,388 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 13:07:08,388 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 13:07:08,389 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 13:07:08,389 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 13:07:08,389 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 13:07:08,389 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 13:07:08,389 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 13:07:08,390 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 13:07:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-03-28 13:07:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-03-28 13:07:08,410 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:07:08,411 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:07:08,411 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:07:08,415 INFO L82 PathProgramCache]: Analyzing trace with hash 598866422, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:07:08,427 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:07:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:07:08,461 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:07:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:08,476 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:07:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:08,521 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:07:08,522 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-28 13:07:08,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-28 13:07:08,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-28 13:07:08,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-28 13:07:08,536 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-03-28 13:07:08,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:07:08,566 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2018-03-28 13:07:08,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-28 13:07:08,567 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-03-28 13:07:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:07:08,574 INFO L225 Difference]: With dead ends: 169 [2018-03-28 13:07:08,575 INFO L226 Difference]: Without dead ends: 86 [2018-03-28 13:07:08,579 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-28 13:07:08,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-03-28 13:07:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-03-28 13:07:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-03-28 13:07:08,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-03-28 13:07:08,615 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 14 [2018-03-28 13:07:08,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:07:08,616 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-03-28 13:07:08,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-28 13:07:08,616 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-03-28 13:07:08,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-03-28 13:07:08,617 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:07:08,617 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:07:08,617 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:07:08,618 INFO L82 PathProgramCache]: Analyzing trace with hash 883394078, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:07:08,641 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:07:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:07:08,655 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:07:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:08,687 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:07:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:08,737 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:07:08,737 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-03-28 13:07:08,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 13:07:08,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 13:07:08,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:07:08,740 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 4 states. [2018-03-28 13:07:08,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:07:08,865 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2018-03-28 13:07:08,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 13:07:08,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-03-28 13:07:08,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:07:08,869 INFO L225 Difference]: With dead ends: 110 [2018-03-28 13:07:08,869 INFO L226 Difference]: Without dead ends: 93 [2018-03-28 13:07:08,870 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:07:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-03-28 13:07:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2018-03-28 13:07:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-28 13:07:08,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-03-28 13:07:08,885 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 15 [2018-03-28 13:07:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:07:08,885 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-03-28 13:07:08,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 13:07:08,886 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-03-28 13:07:08,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-28 13:07:08,886 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:07:08,886 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:07:08,886 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:07:08,887 INFO L82 PathProgramCache]: Analyzing trace with hash 43082517, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:07:08,904 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:07:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:07:08,929 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:07:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:08,968 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:07:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:09,106 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:07:09,107 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2018-03-28 13:07:09,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 13:07:09,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 13:07:09,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-03-28 13:07:09,108 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 7 states. [2018-03-28 13:07:09,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:07:09,255 INFO L93 Difference]: Finished difference Result 188 states and 200 transitions. [2018-03-28 13:07:09,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 13:07:09,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-03-28 13:07:09,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:07:09,258 INFO L225 Difference]: With dead ends: 188 [2018-03-28 13:07:09,258 INFO L226 Difference]: Without dead ends: 114 [2018-03-28 13:07:09,259 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-03-28 13:07:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-03-28 13:07:09,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2018-03-28 13:07:09,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-03-28 13:07:09,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2018-03-28 13:07:09,272 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 21 [2018-03-28 13:07:09,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:07:09,272 INFO L459 AbstractCegarLoop]: Abstraction has 107 states and 113 transitions. [2018-03-28 13:07:09,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 13:07:09,273 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2018-03-28 13:07:09,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-03-28 13:07:09,274 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:07:09,274 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:07:09,274 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:07:09,274 INFO L82 PathProgramCache]: Analyzing trace with hash 283568854, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:07:09,282 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:07:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:07:09,304 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:07:09,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:07:09,326 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:07:09,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:07:09,329 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 13:07:09,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:09,357 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:07:09,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:07:09,397 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:07:09,398 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-03-28 13:07:09,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 13:07:09,399 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 13:07:09,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-28 13:07:09,399 INFO L87 Difference]: Start difference. First operand 107 states and 113 transitions. Second operand 5 states. [2018-03-28 13:07:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:07:09,589 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2018-03-28 13:07:09,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 13:07:09,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-03-28 13:07:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:07:09,594 INFO L225 Difference]: With dead ends: 107 [2018-03-28 13:07:09,594 INFO L226 Difference]: Without dead ends: 105 [2018-03-28 13:07:09,594 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 13:07:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-03-28 13:07:09,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-03-28 13:07:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-03-28 13:07:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2018-03-28 13:07:09,606 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 29 [2018-03-28 13:07:09,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:07:09,607 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2018-03-28 13:07:09,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 13:07:09,607 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2018-03-28 13:07:09,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-03-28 13:07:09,608 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:07:09,608 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:07:09,609 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 13:07:09,609 INFO L82 PathProgramCache]: Analyzing trace with hash 283568855, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:07:09,621 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:07:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-28 13:07:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-28 13:07:09,699 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-03-28 13:07:09,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 01:07:09 BoogieIcfgContainer [2018-03-28 13:07:09,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 13:07:09,734 INFO L168 Benchmark]: Toolchain (without parser) took 2078.97 ms. Allocated memory was 309.9 MB in the beginning and 445.6 MB in the end (delta: 135.8 MB). Free memory was 250.1 MB in the beginning and 400.9 MB in the end (delta: -150.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:07:09,735 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 309.9 MB. Free memory is still 262.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:07:09,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.03 ms. Allocated memory is still 309.9 MB. Free memory was 250.1 MB in the beginning and 240.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-03-28 13:07:09,737 INFO L168 Benchmark]: Boogie Preprocessor took 35.69 ms. Allocated memory is still 309.9 MB. Free memory was 240.0 MB in the beginning and 238.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:07:09,738 INFO L168 Benchmark]: RCFGBuilder took 423.67 ms. Allocated memory was 309.9 MB in the beginning and 445.6 MB in the end (delta: 135.8 MB). Free memory was 238.1 MB in the beginning and 409.2 MB in the end (delta: -171.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. [2018-03-28 13:07:09,739 INFO L168 Benchmark]: TraceAbstraction took 1401.56 ms. Allocated memory is still 445.6 MB. Free memory was 408.3 MB in the beginning and 400.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 5.3 GB. [2018-03-28 13:07:09,742 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 309.9 MB. Free memory is still 262.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 212.03 ms. Allocated memory is still 309.9 MB. Free memory was 250.1 MB in the beginning and 240.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.69 ms. Allocated memory is still 309.9 MB. Free memory was 240.0 MB in the beginning and 238.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 423.67 ms. Allocated memory was 309.9 MB in the beginning and 445.6 MB in the end (delta: 135.8 MB). Free memory was 238.1 MB in the beginning and 409.2 MB in the end (delta: -171.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1401.56 ms. Allocated memory is still 445.6 MB. Free memory was 408.3 MB in the beginning and 400.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L32] FCALL int i, b[100]; VAL [b={7:0}] [L33] i = 0 VAL [b={7:0}, i=0] [L33] COND TRUE i < 100 VAL [b={7:0}, i=0] [L34] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={7:0}] [L21] FCALL int a[n], i; VAL [\old(n)=0, \old(size)=0, a={6:0}, b={7:0}, b={7:0}, n=0, size=0] [L21] int a[n], i; VAL [\old(n)=0, \old(size)=0, a={6:0}, b={7:0}, b={7:0}, n=0, size=0] [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={6:0}, b={7:0}, b={7:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={6:0}, b={7:0}, b={7:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={6:0}] [L12] int res = 0, i; VAL [\old(size)=1, b={6:0}, b={6:0}, res=0, size=1] [L12] int res = 0, i; VAL [\old(size)=1, b={6:0}, b={6:0}, res=0, size=1] [L13] i = 0 VAL [\old(size)=1, b={6:0}, b={6:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={6:0}, b={6:0}, i=0, res=0, size=1] [L14] FCALL b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 11 error locations. UNSAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 167 SDslu, 484 SDs, 0 SdLazy, 155 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 141 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 7162 SizeOfPredicates, 5 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_13-07-09-756.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_13-07-09-756.csv Received shutdown request...